Finding the Fourth Proportional to 80,251.97, 120,109.36 and 79,189.90
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Solution
The fourth proportional to 80,251.97, 120,109.36 and 79,189.90 is: 118,519.82
Step by Step Solution
- Step 1: Write the proportion equation
80,251.97 : 120,109.36 = 79,189.90 : x - Step 2: Convert to fraction form
80,251.97/120,109.36 = 79,189.90/x - Step 3: Cross multiply
80,251.97x = 120,109.36 × 79,189.90 - Step 4: Simplify right side
80,251.97x = 9,511,448,310.59 - Step 5: Solve for x
x = 9,511,448,310.59/80,251.97 - Step 6: Final answer
x = 118,519.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.